Repair device for automobile springs



Jul 10, 1923- P. T. JASMIN REPAIR DEVICE FOR AUTOMOBILE SPRINGS Filed Aug. '7, 1922 wanes/a WWW Patented July 10, 1923.

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PA EN P ILIP, HENRY HUBER, or .nnnn mgnonrnna."

nEPnInnnvIo- 'Fon AUTOMOBILE sen-Ines; 1 I

Application filednu usm, 1922. seri i-Natsoeos;

T0 all'whomitmag concern: v Be. it. knownthat I,-PETER Tnnnonn J AS- MIN a citizen of the United States, residing at Ifelena', in the county of Lewis and Clark and State of Montana, have invented certain new and useful Improvements in a Repair Device for AutomobileSprings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable othersskilled in the artto which it-appert'ains to make and usethe same.

This invention relates to a device which is designedifortemporarily repairing a vehicle spring of the laminated type.

Specifically, it {is'the principal object of the invention to generally improve upon repair devices of this class by providing one which is in the form of a clamp designed to bind the leaves of a spring tightly together, this clamp embodying means which is cooperable' with the master leaf on opposite sides of the crankto hold the broken sections against longitudinal slippage in case the clamp should become loose enough topermit this to happen.

Other objects and advantages of the invention will be apparent during the course of the following description. I

In the accompanying drawings forming a part of this specification and in which like numerals are employed todesignate like parts throughout the same:

Figure 1 is a top plan view of one end of a vehicle spring showing the improved repair device in position thereon.

Figure 2 is a side elevational view of Figure 1.

Figure 3 is a longitudinal section taken on the line 33 ofFigure 1.

Figure 4 is an enlarged transversed vertical section taken on the line l4: of Figure 2.

In the drawings, the letter S designates generally a conventional type of laminated vehicle spring, the master leaf L of which is formed at its outer end with eyes E for connection with the usual shackles (not shown).

The improved repair device comprises a clamp including an elongated plate 1 which is increased in thickness at its center, this plate being substantially the same in width as the spring leaves and being provided intermediate its ends and on its longitudinal edges at oppositely disposed spaced points with L depending screw-threaded arms 2 which extend cross-wise of, the longitudinal that thesearms2 are of a length to extend below the lowermost spring leaf and; it can edges of the springfleaves, It is to be noted fore, I have shown this leaf as being cracked.

-Due to the fact that an endwise pull would be exerted on the brokensections of the master leaf, it is desirable, as before indicated, to devise means which tend to prevent separation of said sections. Although the means could be of some other construction, it preferably comprises two or more set-screws 5 which pass through threaded openings in the aforesaid plate 1' and have their inner pointed ends embedded .in the broken sections of the masterleaf on opposite sides of the crack. It is therefore obvious that when these set-screws are tightened sufiiciently,

they tend to prevent endwise slippage of the broken sections of the springs due to the fact that their pointed ends bite into said sections. These set-screws also serve to pre vent endwise slippage ofthe repair clamp in case the nuts 4; become accidentally loosened. It is also desirable to employ another set-screw 6 to assist in maintaining the clamp in place, this set-screw passing through a screw threaded opening formed in the center of the aforesaid plate 3 and engaging the lowermost leaf. 7

It is obvious from the foregoing description that in case the break should occur in the master leaf, the clamp is positioned so that the pointed set screws 5 will be positioned on opposite sides of the break. As before stated, these screws should be tightened so that their pointed ends become embedded in the broken sections of the spring to hold them as much as possible, against longitudinal separation. These set-screws 6 and the nuts 4 to maintain the repair device effectively in position on the broken part of the spring. It is also obvious that when the set screws 5 are tightened, they tend to move the outer ends of the plate 1 away from the master leaf or spring and in so doing they tend to draw the cross-plate 3 more tightly against the lowermost and in this way effect more effective clamping action than could otherwise be obtained.

By carefully considering the description in connection with the drawings, persons familiar with devices of this class will doubtless be able to obtain a clear understanding ofthe invention. Therefore, a more lengthy and detailed description is deemed unnecessary.

Since probably the best results may be obtained with the construction and arrangement herein shown and described, this is taken'as the preferred embodiment of the invention. However, I wish it to be understood that minor changes coming within the scope of the invention as claimed may be resorted to if desired.

I claim:

A repair device for vehicle leaf springs comprising a fiat clamping plate to span the break and to contact the upper face of the master-leaf from one of its 'ends'to the other, said plate being provided on its longitudinal edges intermediate its ends with opposed depending integral arms having screwthreaded portions, said arms being adapted to extend crosswise of the longitudinal edges of the spring leaves, a cross-plate to extend transversely across the lowermost leaf, said last named plate being formed at its opposite ends with holes through which said arms extend, nuts on the threaded portions of said arms, said first named plate being provided at its end with screwthreaded openings, and retainer screws threaded through the openings, the inner ends of said screws being pointed to securely grip the master-leaf to prevent slippage of the de-i vice thereon.

In testimony whereof I have hereunto set my hand.

PETER THEDORE JASMIN- 

